Some tests fail with NVIDIA GPUs on Mac

[eholk]

Some test cases, like nbody.kfc and nbody2.kfc fail on Macs when using an NVIDIA GPU.

See the discussion thread at https://groups.google.com/d/msg/harlan-dev/l-W0xXQJPKY/Uw8K_z6gEe0J for more details.

[zarzen]

I am in similar issue, but different failures:

......
Creating queue for Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz
OpenCL Error: OpenCL Build Warning : Compiler build log:
<program source>:158:13: warning: unused variable 'i_27429'
        int i_27429 = get_global_id(0);
            ^


freeing region 0x1042ea000. 80 bytes of 8388608 allocated
freeing region 0x1052ea000. 64 bytes of 8388608 allocated
freeing region 0x1062ea000. 120 bytes of 8388608 allocated
[0 1 2 3 4 5 6 7]
FAILED
......
Some tests failed:
    test/scan.kfc
    test/graph-holography.kfc
Successes: 158; Failures: 2; Ignored: 30; Total: 190

I have tried this command HARLAN_DEVICE=gpu make check but got more errors.

......
OpenCL Error: OpenCL Warning : clBuildProgram failed: could not build program for 0x1024400 (HD Graphics 4000) (err:-2)
OpenCL Error: [CL_BUILD_ERROR] : OpenCL Build Error : Compiler build log:
<program source>:158:13: warning: unused variable 'i_26340'
        int i_26340 = get_global_id(0);
            ^
<program source>:173:13: warning: unused variable 'i_26349'
        int i_26349 = get_global_id(0);
            ^
Error: parse error.


<program source>:158:13: warning: unused variable 'i_26340'
        int i_26340 = get_global_id(0);
            ^
<program source>:173:13: warning: unused variable 'i_26349'
        int i_26349 = get_global_id(0);
            ^
Error: parse error.

clBuildProgram failed with error CL_BUILD_PROGRAM_FAILURE (-11) in cl++.cpp:233
FAILED
......
Some tests failed:
    test/unsafe-vec-ptr.kfc
    test/read-file.kfc
    test/raytrace.kfc
    test/nbody2.kfc
    test/nbody.kfc
    test/kernel-even-odd.kfc
    test/interp-lambda2.kfc
Successes: 153; Failures: 7; Ignored: 30; Total: 190

System info:
MacOS 10.11

Intel HD Graphics 4000:

  Chipset Model:    Intel HD Graphics 4000
  Type: GPU
  Bus:  Built-In
  VRAM (Dynamic, Max):  1536 MB
  Vendor:   Intel (0x8086)
  Device ID:    0x0166
  Revision ID:  0x0009
  gMux Version: 1.9.23

NVIDIA GeForce GT 650M:

  Chipset Model:    NVIDIA GeForce GT 650M
  Type: GPU
  Bus:  PCIe
  PCIe Lane Width:  x8
  VRAM (Total): 512 MB
  Vendor:   NVIDIA (0x10de)
  Device ID:    0x0fd5
  Revision ID:  0x00a2
  ROM Revision: 3682
  gMux Version: 1.9.23

So how can I force it to use GTX650m. I have installed CUDA7.